Script to batch rename/copy sequentially named files to names given in an array

map_file_rename.py

# Python 3

import os
import shutil

# Rename files named for example 'tile_0.png', 'tile_1.png'... in orig_files_folder
# to the names given in the des_tile_names array (based on their index in the array)

file_ext = ".png"

orig_files_folder = "exported_tiles"
orig_file_base_name = "tile_"

dest_files_folder = "renamed_tiles"
dest_file_names = [
    "grass_top",    #tile_0
    "grass_side",   #tile_1
    "grass_bottom", #...
    "dirt_top",
    "dirt_side",
    "dirt_bottom"
    ]

def main(): 
    if not os.path.exists(orig_files_folder):
        print('Folder ' + orig_files_folder + ' not found!')
        return

    if not os.path.exists(dest_files_folder):
        os.mkdir(dest_files_folder)

    i = 0
    for dest_file_name in dest_file_names:
        source_path = os.path.join(orig_files_folder, orig_file_base_name + str(i) + file_ext)

        if os.path.exists(source_path):
            dest_path = os.path.join(dest_files_folder, dest_file_name + file_ext)
            print("Copying  '" + source_path + "'  to  '" + dest_path + "'")
            # os.rename(source_path, dest_path) # Rename file
            shutil.copy(source_path, dest_path) # Copy file
        else:
            print('File ' + source_path + ' not found, skipping.')

        i+=1


if __name__ == '__main__':
    main()